Steam-engine



6N0 Model.) 2 S heetsSheet 1.

. J. KAISER.

STEAM ENGINE.

Patenied Oct. 2, 1883.

' Inn/e Jaa A a z Iv PETERS. Plwloidhngmphcr. wnillmgwvl. D c,

6N0 Model.)

2 SheetsSheet 2.

J. KAISER;

STEAM ENGINE,

' PatentedOot. 2, 1883.

Fay/2f F698. e I I M [HZ/'Qhfgr (760005 Jihimr llhsrrnp TATES J AGOBKAISER, OF BROOKLINE, MASSACHUSETTS.

STEAM-ENGINE.

SPECIFICATION forming part of Letters Patent No. 285,904, dated October2, 1883.

Application filed July 10, was. (No model.)

T aZZ whom it may concern:

I Be itknown that I, JACOB KAISER, of Brookline, in the county ofNorfolk, of the Commonwealth of Massachusetts, have invented anew anduseful Improvement in Steam-Engines;

-and I do hereby declare the same to be de scribed in the followingspecification and represented in the accompanying drawings, of which IOFigure 1 is a top view, Fig. 2 a horizontal section, and Fig. 3 atransverse section, of a steam engine provided with my invention. Fig. 4is a plan of the working -face of the valve D, hereinafter described.Figs. 5 and 6 are opposite side views of the valve 1).

Fig. 7 is a view of the cylinder A and the seat of the valve D thereof.Fig. 8 is a side view of the cross-head M, for connecting the valves andtheir red L, to be explained.

This engine has two cylinders and a single valve-chest therefor,arranged between them and containing two valves, applied to a singlered, operated by one eccentric and its valverod connection. The rods ofthe pistons of the two cylinders have their cranks of the shaft to bedriven arranged in planes at a right or an obtuse angle to each other,in order that each crank in passing a deadpoint may be assisted by theforce applied by the other to revolve it.

In the drawings the two cylinders are shown at A and A, the intermediatevalve-chest at B, the pistons at C and O, the slide-valves at D and D,and the valve-operating rod at L. 5 In one cylinder the piston thereofis exhibitedas having completed its inward stroke, while in the othercylinder the piston is represented at half stroke.

The shaft E to be revolved has one crank,

F, arranged in a plane at a right angle relatively to that of the other,F, the connectingrods of the two cranks and the piston-rod being shownat G and G. The eccentric for operating the valve-rod is represented atI, and its 5 valve-rod connection at K.

The passages for leading steam to and from the cylinders are shown at aand a and b and 1), those for exhaust of thesteam being represented at cand c and d and cl.

The ports of the valve D are shown at e and 6, those of the valve Dbeing represented at f and f andg and g, the last two being joined by apassage, 9 The two valves are connected with their red L by a crosshead,M.

In Fig. 2 the steam-passage a of the cylinder A is exhibited asuncovered by the valve, in which case steam from the chest 13 will flowthrough the said passage a into the cylinder, the exhaust-steam passingfrom the cylinder through the passage (0, the port 0, and the passages cand c. At the same time steam will be flowing through the port f and thepassage I) into the other cylinder, the exhauststeam of which will beescaping by the passage b, port y, and the passages g", d, and d. on thepiston 0 having completed its inward stroke, the piston G will be athalf-stroke, and the cylinder A will take steam through the port f andthe passage 1), and exhaust through the passage b, the portg, and thepassages g", d, and d. On the piston C having completed its outwardstroke, the cylinder A will receive steam through the passage a, andexhaust through the passage (1, port 6, and the passages c and 0. Eachpistoircrank. when at a dead- 7 5 point, will be assisted past such bythe other piston and its crank.

An engine having two cylinders and their pistons and a single steamchestarranged, as described, between and communicating with the two cylindersby passages, represented, and also having in the steam-chest--"*' twovalves, like the valve 0, and to be operated by suitable means, will befound of service, especially for locomotives for railways; 8 5 but whenthe crank of each cylinder is to be assisted in passing its dead-pointsit becomes necessary to have the cranks arranged in planes at an angleto each other, as described, and also to have to the two cylindersvalves 0 and steam -passages therefor, essentially as shown in thedrawings, and as hereinbefore explained.

I am aware that an engine has been provided with two cylinders having asteam-chest 5 between, in which are placed two valves havingeccentric-rods, and also that a single valve has been used within suchan intervening stelmchest. 7

What I claim is- IOO The combination of the two steam-engine eccentricI, and its valve-rod conneetionK, cylinders A and A, their'pistons C andC, all being substantially and to operate as set and the connecting-rodsG G thereof, with the forth.

cranked shaft E, having its two cranks F F i J AOOB KAlSER. 5 arrangedin planes at an angle to each other, Witnesses:

and with the single steam-chest B, two slide- R. H. EDDY,

valv'es, D D, therein, the cross-head M, the E. B. PRATT.

